Grain-shocker.



M G. SLAWSONf GRAIN SHOCKER. APPLICATION FILED JULY 26. 1917.

1,282,308a Patented Oct. 22, 1918.

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M. G. SLAWSON.

GRAlN SHOCKER.

APPLICATION FILED JULY 26,1917.

Patented Oct. 22, 1918.

5 SHEETS-SHEET 2.

I M. e. SLAWSON.

(mm SHQCKER. APPLICATION HLED JULY 25, I911.

Patented Oct. 22, 1918.

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M. G. SLAWSON.

GRAIN SHOGKER.

APPLICATION nuzo JULY 26. 1911.

Patented Oct. 22, 1918.

5 SHEETS SHEET 4.

AVI

Wilma M G. SLAWSON.

GRAIN SHOCKER. APPLICATION nuau JULY 26.1912.

1,282,308., Patented 00%.. 22, 1918.

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MARION G. SLAW'SON, OF GIRABD, KANSAS.

GRAIN-SHQCKER.

esaaos.

Application filed'luly 26, 1917.

To all whom it may concern:

Be it known that I, MARION G. SLAwsoN, a citizen of the United States of Amerlca,

residing at Girard, in the county of Crawford and State 'of Kansas, have invented certain new and useful Improvements in Grain-Shockers, of which the following is a specification.

This invention relates to grain shocker-s of the type shown. in. Patent 985,750 issued to me on February 28th, 1911 and in Patent No. 1,198,231 issued to me on September 12th, 1916 and the primary object of the invention is to provide an improved feeding means for delivering the bundles of grain to the shock forming arms of the aforesaid patents. r

In the above named patents the bundles of grain fall from a grainbinder and are carried through a passage-way by endless chains having suitable means thereon for engaging the bundles of grain. In Patent No. 1,198,285 packers are employed for thrusting the bundles into the shock forming arms. 7

According to the present inventionthese packers and chains are completely done away with and I mount within the passageway a reciprocatory plunger head and I provide novel, simple and highly efficient means for controlling the movement of this plunger head so thatit will be released by a falling bundle of grain, will then deliver said bundle of grain firmly and positively to the shock being formed and will then automatically return to a position of rest at the front end ofthe passageway where it will remain until it is again set in operation by the fallof another bundle of grain.

Further objects of the'invention are to provide improved means for holding the bundles of grain in an upright position until. they are engaged by the plunger head, to provide a simple and eilicient mounting for the plunger head and for actuating the same, together with an improved controlling means for the several parts. A further object of the invention is to provide iir proved means for placing the bundles of grain in the shock forming arms, said means being a'ranged to thrust alternate bundles upon .the opposite'sides of the longitudinal center of the machine so that the formed shock is symmetrical and compact.

Further objects and advantages of the in- Spe'cification of Letters Patent.

-Patented Oct. 22, 1918.

Serial No. 182,850.

vention will be set forth in the detailed description which now follows:

In the accompanying drawings.

Figure 1 is a plan view illustrating a grain shocker having the invention applied thereto. a

Fig. 2 is a perspective view of the plunger head actuating and controlling mechanism.

Fig. 3 is a longitudinal, sectional view through a passageway hereinafter described illustrating the chain which drives the plunger head.

Fig. 4 is a rear elevation of the plunger head with the track way in section.

Fig. 5 is a detail plan view illustrating a retaining arm and associated parts hereinafter described.

Fig. 6 is a side view of a clutch actuating dog hereinafter described.

Fig. v7 is a detail perspective view of a special link employed in the drive chain of the plunger head.

Fig. 8 is a plan view. with certain of the parts omitted, illustratinga modified form of the device in which a placing mechanism for the bundles is employed.

Fig. 9 is an enlarged plan view illustrating a part of the placing mechanism upon an enlarged scale.

Fig. 10 is a detail side view of the clutch hereinafter described.

Fig. 11 is a side elevation of an actuating latch for said clutch, and

' Fig. 12 is a detail view of one of the placers.

Like numerals designate corresponding parts in all of the figures of the drawing.

In the drawings. 5 designates a portion of a grain binder and 6 designates the rectangular frame of the shocker. This frame is connected to the grain binder by an intermediate frame 7. The frame 7 carries an arm 8 that is actuated by a spring 9 to force an idler roller. 10 into engagement with a sprocket chain 11 to thereby prevent undesirable loosening of said chain. This sprocket chain passes over a sprocket Wheel 12 upon a shaft 13. The shaft 13 is one of the shafts of the grain binder and motion is imparted from this shaft to the longitudinal shaft 14- of the shocker through the medium of a sprocket wheel 15. As in the patents above referred to, a table 16 is arranged to have reciprocatory motion imparted thereby by sprocket chains 17 These sprocket chains pass over sprocket wheels 18 and 19, the latter of which are mounted upon a transverse shaft 20. Shaft20 carries a bevel gear wheel 21 which is in mesh 'with bevel gear wheels 22 and 23. These latter gear wheels are loose upon shaft 14. A. clutch 24- is splined upon shaft 14 and is adapted to be thrown into engagement with gear wheel 22 or 23 through theme dium of a lever 25. This lever is pivoted at 26 upon frame 6 and its freeend engages clutch 2-1.

The controlling means bywhich the clutch 211s shifted to control the movement, of the part of the presentinvention and is,ftherefore, not described, the invention in the present case residing more particularly inimproved means for feeding the bundles to the shockforming arms as will be hereinafter set forth.

In carrying out the present invention I drive from the shaft 14: through chain 14* and shaft 1% to a bevel-pinion 27 which meshes with a bevel pinion 28 upon acounter shaft 29. This counter sprocket wheel 30 which drives by means of a chain 31 to a sprocket wheel 32 on a coun-" toward the clutch member '37 and .W'llGIl these two members are engaged with each other motion is imparted to the sprocket wheel 39 from the shaft- 33. A-"sprocket chain -10 passes over .the sprocket wheel 39 and over a. sprocket wheel'tl that is disposed in a recess 42 .formed in the bottom of the passageway 13. The sprocket A, chain 4L0 carries a special link' 14 having ,an eye 45 adapted to receive the angular end e6 of a connecting rod 47. The opposite end of this. connecting rod is engaged at 48 with a lOOX' tQ. carried by a plunger head 50. 'This plunger head comprises a pair of L-shaped angles: 51

spaced from each other and tied together by a sheet iron face'52. This plunger head 18; mounted upon wheels or rollers 53 and it issuitably braced by bracestvl. The wheels travel in waysv55' formed in the .opposite sidesofjthe passageway near the bottom thereof. It will be apparenethat movement of the sprocket chain 40 will impart longitujdinal reciprocation to the plunger' head andthereby force through the passageway 43- any bundle of grain which may be therein. 56 designates the shock forming arms which receivethe bundles of grain as they are thrust from the passageway 43 by the plunger head,'these shock forming arms The clutch D A'spring 34 i normally tends to thrustthejclutch collar 34 scribed andgreleases the lever 60.

downward at the front end of the passageway so that the plunger head will, when in a position of rest, have its frontface disposed at quite an angle to the vertical. This provides-for room for the bundles to fall into the passageway without necessitating a corresponding'increasein the length of'the passageway. I The downward inclination of -the way is. indicated at 55. These ways are also downwardly inclined at the-rear table 16 into and out offrame 6' formsno end of the passageway as indicated at 55 so= that in the final part of the operative movement of the plunger head the upper end thereof is rocked forward to impart a final thrust to'the top of the bundle into the shock forming arms 56.

'The clutch collar 34 is engaged by a head 57 formedupon a lever 58 that is pivoted at This leverhas a curved end 60 disposedin'the'path of movement of a dog 61.

This dog is pivoted at 62 to a sliding bar 63. shaft carries a The bar 63 is mounted for slidable movement by having reduced end portions 64 thereof, disposed in bearing blocks 65 -and 66. -A spring 67 is disposed-between the bearing block 65 and a shoulder (58 of the bar 63. 'The dog 61 is connected by a link 69 with an arm of a bell crank lever 70. said bell crank lever being-pivoted at 71- to a bearing stud 72 that is carried by the bar 63.

The other arm of the bell crank lever is connected by a link 7% with-an arm of a second bell crank lever 75. This second bell crank lever is pivoted at 76 and is connected by a link 77 with the tail'78 of a finger'TQ. Thefinger-Y 9 is pivoted at'80 and when this finger liesin a horizontal plane it lies in the path ofmovement hf the falling bundles of grainf'The depression of thefree end of 7 thisfi-nger by the weight of a'falling bundle of gra1n draws upwardly upon link 77 and imparts a pull tolink 74. This in turn elc vates the dog til-through the connections dc;

Thereupon thespring 34 shifts the clutch-collars 3i tobring the teeth 35 into'engagement withthe-teeth36 of the clutch member 37 and movement is imparted to the chain-l0 and through thewconnectionsj described to the plunger head. The plunger head travels all the waythrough the passageway forcing a bundle of grain ahead of it and thrusts the bundle-ofgrain into the shock forming arms as hereinafter set forth. "lVhen the link 4A passes from the upper flight ofthc chain to the lower flightthereof'the move- -ment of the. plunger head is reversed and it travels tow'ard the front of the passageway d3. During the return movement. of the plunger head it strikes a horizontally disposed lever 81. This lever is pivoted at 32 finger 79.

to a part of the frame and, has a slightly loose connection with the bar 63 through a pin 83 and slot 84. The resultant movement of the lever 81 toward the front end of the passage causes the dog 61 to thrust against the lever 60 and rock said lever upon its pivot 69 to thereby throw the clutch collar 31 in such direction as to disengage the teeth 35 from the teeth 36 and bring the plunger to a position of rest at the front end of the passage where it remains until another bundle of grain drops and strikes the The movement of the bar ()3 under the action of the lever 81 results in compressing the spring 67. The bar 63 normally tends'to move toward the rear end of the passage 43 but is restrained by the plunger head as long as the plunger head is in a position of rest. However, when by the lifting of the dog 61 the lever is free and the clutch collar 34: sets the plunger head in operation the spring 67 causes the bar 63 to follow the plunger head as it starts upon its opposite stroke and this 'endwlse movement of thebar 63 results in bringing the dog 61 to a position where it can again snap behind the lever 60 preparatory to thrusting against said lever when the plunger head agam comes to the front end of the passageway. A fiat spring 61 normally tends to depress the dog 61 and causes'the dog to snap behind the lever 60 aforesaid. I

It is to be noted that the-bell crank lever 7 Ois capable of two movements. That is, it rocks upon its pivot 71 and it is subjected to a bodily movement with the bar 63 upon which it is mounted. This bodily movement of the bell crank 7 O is utilized to throw the in the manner finger 79 out of the path of the plunger head as follows: When the bar 63 moves under the influence of the spring 67 a bodily movement is imparted to the bell crank 70 and this bell crank thrusts through the links 7-1 with the result that an upward movement is imparted to the links 77 whereby the tail 78 of the finger is thrust upwardly and the free end of this finger is thrown downwardly into a vertical positiom' in which position it remains until the plunger head upon its return stroke passes the finger and contacts with the lever 81 where upon the bar 63 is thrust in the opposite direction or against the tension of the springs 67 and this, through the connection described, results'in swinging the finger 79 to a horizontal position where it lies in the path 1 of movement of the falling bundles of grain as hereinbefore set forth.

1For holding the bundles of grain in an uprightposition until they are properly engaged by the plunger head a retaining arm 85 is mounted upon a vertical shaft 86. The shaft 86 carries ears 87 and 88. A rod 89 is pivoted at 90 to the car 88 and slides to hold the'retaining arm 85 either in a position where 1t hes across the passageway 43 or in a position where it lies parallel with sald passageway 43. In other words, when the plvot point 90 passes over the center the spring 93 will act to hold the arms 85 in one or the other of these positions. The car 87 is connected by a rod 941 with a finger 95 that is pivoted at 96 to 'a bearing bracket v 97 and the connections are such that when the retaining element 85'lies across thepassageway the finger 95 lies out of the path of movement of the plunger head and when the retaining arm 85 lies parallel with the passageway the'finger 95 lies across the passageway.

The result of the foregoing arrangement of parts is that when the plunger head is in a position of rest the finger 95 lies out of the path of movement of the plunger head and. the retaining arm 85 lies across the path of movement of the plunger head and serves to hold the bundles of grain inan upright position until the plunger head in its forward travel properly engages them. Continued movement of the plunger head results in swinging the retaining arm 85 .to a position where it'is parallel with the passage 43 so that the plunger head may pass by. This movement of the retaining arm brings the finger 95 into such position that the plunger head upon its return stroke will strike the finger and in moving this finger out of the passageway will bring the retaining arm 85 back into its bundle retaining position. Spring actuated shields 98 are .The right angular ends 100 of the shields act to pack the bundles in the shock forming arms and to prevent thebundles from hacking into the passageway C3.

In Figs. 8 to 12 I have illustrated an improved form of the invention wherein placers for the bundles of grain are employed. In this form of the device shaft 11 is connected by beveled gears and 106 with a transverse shaft 107. This shaft drives, by beveled gearwheels 108 and 109. the vertical shafts 110 and 111. FiXed upon the upper ends are clutch disks 112 and loosely mounted with respect to these shafts are clutch disks 113.- The last named clutch disks are provided with teeth 11stv that coactwith notches 115 formed in arms 116 that are fixed to the frame. The disks 113 are provided with crank arms 117 and these -The rods.119 at their oppositeends arepivcrank arms are pivotallyconnected by links .118 with rods 119. These rods at one. end. areslidablymountedin blocks 120 andthese follows that a complete revolution, will, be

blocks in turn are pivoted to bracket 121.

otediat 122 to the placers. .Qneof' these p la cers is illustrated in; Fig. 12 andby referring to that figure it will beseen, that they comprise substantially .U-shaped frames 123, the -ends ofwhich are connected bywverticalbars 124; that are provided withteeth 125. vThese .placers. slide in bearings; 126

- and. 127 by which they are causedto operate in. a straight line and.obliquely acrossthe assage. a3. and, within the mouth presented y ;the shock forming arms. 56.

The object sought is to cause one ofthe placers to be actuated each time, alonndle is. forced intothe shock. forming arms and v to causetheplacers to;.be alternately. actuated so'th'atone bundle will be thrust to one .sideof .the central lineof the. passageway andthe next bundle. willbethrnst to the opposite Side thereof ,andso on. vTo accom plish this'l mount, verticalgshafts 128. and

I 1-29 ,upon opposite sides of the passageway and these shafts carry crank arms .130

and 131 that are connected, by a rod 132trhat he vertical. shafts 128 and 129 are furthermore I provided with laterally extending arms 133 extends beneath the passageway 43.

thathave pivotal connectionwith rods 13 1,

the. latter sliding through.vertical exten- 35.

sions 135 and being. provided with springs I .136, the whole constituting a past center scription of one will serve as a description of both. The inner portions of theselevers .1 are secured to the shafts 128 and 129 and holdingmeans? of a well-known type,..by

which the shafts 128 and 129 will be held at one oftheirdimits of movement or the other.

The shafts128 and 129 are further provided with two-part levers 137 and 138. Since theselevers are alike in construction a dethe outer portions of 'the levers are pivoted to'the inner portions thereof at 139 (see Fig. 9). The abutting portionsof the parts ofthe levers are s0,shaped, asto constitute shoulders 140 so that these leverswill bend or fold in one direction but not in the other direction. 'Theinner portions ofthe levers are pivotally connected. at'1411 to rods 1 12 and the opposite endsot these rodshave -;slid'ajble .mounting in frame members 1413.

' The rods 142 are provided with enlarged 1 portions 142v that. are slotted for the reception of dogs 144. Flat springs 145 tend to elevate these dogs and to maintain them insuch position'that when the rods 142 are 'This causes the corresponding tooth 114 to iride up the inclined surfacejllfi of recess 115 corresponding v placer.

. t plun er.

. andbring theteeth113 of the lower .clutch I disk, into -engagement. with: the teeth v 112 I of theupper'fclutch -disk .112. sincerthis upper clutch diskcontinuously,rotates it given to thecrank 1'17,which revolutionwill ,only cease whenthe tooth 1141 again-reaches a position to snap into the recess 115 under the influence of a spring 1 16.

The-inner and outenportions of the levers 137 and 1'38.areconnected by. springs 1 17 while the. outer portions, of these levers. are

connected by springs .148with the frame at 149. .The: sp rings,148 areof, stnonger tenyield under .the action: of spring- 1 18.101 pernnt the plunger head to; pass .without, af-

ect th 1'2 c ng-.m c an sm ThaPlm ger head v5O can' pass. lever ,138, beca ise the outer. end of this lever. has been. folded over i as 7 shown .in,E ig; 8.- Atte'r the bundle has -beenforced. into the Ishockl forming arms and ,theplunger head .50 starts 1rpon.;, its ;re-

turn. movement it, .cont ac.ts' with lever-i137 and mo ves. sa1d lever .rearwardly. ,thereby pulling .upon ,rod 14:2,. and through dog 144;.

imparting an initial, movementlto .the'. lower half 117 of the corresponding; ,clutchI to thereby cause the inward projectionpt .the In 2 this rearward movement of, lever .137 .the tensio is taken .05 the spring. 148 to .such an extent that spring. 147 becomes stronger.,than spring 148 a11d..f0ldS lever 137 ,to the 1 dottecl;;line

position shown in Eigefl. In otherwords, this lever lthen. oociipies position eorresponding to that formerly, occupied by lever .138. The rearward, movement of lever; .137

also results in pulling upon -.link 1132 and swinging lever 138 toward .;the shqck .forming arms. This ,puts, the.-..corresponding spring 1418 ofleven 138 11nder s.ueh tension asto overcome the spring-1&7 of said lever and straighten said lever, t0 cause it to locvcupy a corresponding 1 position to that :for-

merly held by lever- .137.. Consequently, when the plunger. head. again; moves t0ward ,the shock vforming arins it will entirely. .clear lever 137 while the lever; 138. will yield to let itpass. Upon the return, inov'eggnent of hea wi ls-b 1ev 5 th w b n age and. m ved an Lth'ent clutch willbe set in operation-andthe other placer willbeactuated. i

It has been heret fore.stated that tlie present invention resides, partienlarly-in the drawn forwardly these dogs will engage the Pl g r h ad andih .c n o l ngralld.ne t i s means efo H-0 r@' -i$. o. be n r pj d t. t e i ent onis. not limi to the precise construction seti forth but that upon: the contrary .the structure il1ustrated in the accompanying drawings is intended to be merely exemplary. The inventive thought is susceptible of being embodied in many different mechanical forms and it is, therefore, to be understood that the invention resides not only in the particular embodiment shown but that it includes within its purview whatever changes fairly come within the spirit of the appended claims.

Having described my invention what I claim is:

1. In a grain shocker, the combination with a passageway adapted to receive bundles of grain, of an endless chain traveling therein, a track way, a reciprocatory plunger head mounted to travel upon the track way and a connection between the plunger head and the chain, said track ,way being directed downwardly at each of its ends.

2. In a grain shocker, a passageway adapted to receive bundles of grain, an endless chain movable in the passageway, a wheeled plunger head mounted to travel in the passageway and an actuating rod connected to the plunger head and to the chain. I

3. In a grain shocker, a passageway adapted to receive bundles of grain, a retaining arm mounted to swing from a position transverse to said passage to aposition' parallel with the passage and means for holding said retaining arm in either of said positions comprising a lateral extension upon the arm,

a rod connected thereto, a fixed element through which the rod slides and a spring bearing between the fixed element and the lateral extension.

4. In a grain shocker, a passageway adapted to receive bundles of grain, a retaining arm, a vertical shaft upon which the arm is mounted, a pair of ears carried by sa d shaft, spring means connected to one of said ears for holding the retaining arm in aposition transverse to the passageway 01"1I1 a position longitudinal with respect to the passageway, a connecting rod connected to the other of said ears and a pivoted finger to which said rod is connected, the relation of the parts being such that when the retaining arm lies parallel with the passageway the finger projects into the passageway and vice versa.

5. A device of the character described comprising a reciprocatory plunger head,

an actuatmg mechanism for the plunger head, a controlling member for the actuatmg mechanism which, when the plunger head lies at its forward limit of travel, projects.

into the path of the plungerhead and in a positionto'be engaged by a falllng bundle of grain to thereby set the plunger head 1 n operation and means operable upon the n tial movement of the plunger head to swing the controlling member out of the path of movement of the plunger head.

6. In a device of the character described, the combination with a reciprocatory plunger head, of an actuating mechanism for the same includino a clutch, a driven element which is periodically connected to the actuating mechanism by said clutch, means normally tending to move the clutch to engaging position, a lever which when moved in one direction holds the clutch out of action, a longitudinally movable bar, spring means for actuating said bar in one direction, a restraining member pivoted upon said bar, a pivoted controlling element for the restraining element and connections between the controlling element and the restraining element which are so arranged that movement of the controlling element upon its pivot under the influence of a falling bundle of grain will rock the restraining element upon its pivot to release the lever and permit the clutch to be set in operation while endwise movement of the longitudinally movable bar imparts bodily movement to the restraining element to act through said connections to swingthe controlling element upon its pivot and move it out of the path of the plunger head;

7. A structure as recited in claim 6 comprising an element lying in V the path of movement of the plunger head and connected to the longitudinally movable bar to shift and same and throw the clutch out of action by the engagement of the restraining means with thelatter, when the plunger head reaches its forward limit of travel.

8. In a device of the character described, the combination with a reciprocatory plunger head, of an actuating mechanism therefor comprising a clutch, a slidable bar, spring means for moving said bar rearwardly, means connected to the bar and projecting into the path of movement of the plunger head for actuating said bar for-' wardly, a clutch actuating lever, spring means tending to. move the clutch to clutched position, a bell crank lever pivoted upon the slidable bar, a second bell crank lever, a link between an arm of the first bell crank lever and an arm of the second bell crank lever, a controlling finger pivoted intermediate its ends, a link connection between the rear end of said controlling finger and the other arm of the second bell crank lever and a restraining means for the clutch actuating mechanism connected to the first named bell crank lever.

9. In a device of the character described, the combination with a passageway, of a reciprocatory plunger mounted to move therein, an endless chain traveling therein to which the plunger is connected, a driven member for the chain, a continuously moving shaft, a clutch between said shaft and the driven member of the chain, spring means normally tending to move said clutch to closed positio'n'pa clutch controlling lever pivoted intermedlate its ends, a shdable bar, a dog carried by the shdable'bar for engaging the clutch controlling lever, spring means normally tending to move the slidable bar in one direction, a bell crank lever pivoted upon the mova-blebar and having one of its arms connected to the dog, a

bundle actuated finger and connections between the-bell crank lever and said fingerof such nature that when a bundle contacts with saidfinger' the bell crank lever is rocked upon'its pivot to liftthe dogand release' the clutch controlling lever and perinit the clutch to move to operative p,osi-

tion," While bodily movement of the bell crank lever' 'with the slidable bar acts through said connections to throw the controlling Qfinger to a position Where it lies out-of the path of travel of the plunger" head;

v V v Uni 10-. In'a deviceof the character described the combination with shock forming arms, of a reciprocatory plunger for thrust ng the bundles of 'graintherei'nto anda placer set in motion by the movement of sand plunger for placing the bundle ofgrain in proper position within the shock forming arms.-

11. In a device of the character described 1 the combination Withshock forming arms, a reciprocatoryf plunger forkthrusting the bundles of grain thereinto and a pair 0t alternately acting placers controlled by the movement of the plunger, one of saidplacer's being ac'tuated at'each movement of the plunger,"

12. Ina device of the character described,

the combination ith'shock forming arms, a

passageway leadingthereto, a 'reciprocatory plunger in thepassageway,ja pair of obliquely'disposedjplacers, a single revolution clutch for each'of the 'pla'cers, and means controlled by the movement of theplunger a restraining element for holdingthe clutch out'of engagement, a controll ng"member -a r ranged 'in' the path offralling bundles of grain, connectlons between the controlling element and; the restraining mechanism for releasing the restraining mechanism to permit the clutch to move to engaging position to thereby cause'it to set the plungerhead' in operatimrivhen a bundleot'grain strikesthe cont-rolling member and means ope able upon the initial movement of the plunger head to swing'the controlling member out of the path of movement of 'theplunger head.

15. A device of the character described comprising a reciprocatory plunger head, an" actuatingmechanism for" the plunger head, a controllingniember for the actuating mechanism" which, when 'the plunger head liesat its forward limit of travelfproect's' into the path of the"'p1unger heada d in a position to be "engaged 'by a "falling bundle of grainja clutch, connections be tween the controlling member and the clutch for setting the" clutch n operation whentlie controlling member is str'uckby'a"tallin i D bundle of grain and 'm'eansoperating through? said connections for mo'vingithe coi'itrolling member out ofthe path of movement' of the plunger head uponthe' initi al'forward mo've-' ment'of said plunger;

16. A device-"of the character described 1 comprising spaced side Walls constituting" a passageway "between them," a bottomi'for the passagewayhaving tracks? formed" along its opposite sides," a traveling f chain one flight of which isdisposed'above sai d bot-i tom, 'a plunger'head lnountedto travel in the Q passageway, a connection 'between 'tl1e plu n-f ger head and the chain, driving conned-1" tions'for the chain'includinga clutch, a on:

trolling meniber for the clutch mounted independentlybtthe" plunger head and er ranged to project 'into the pathfof move-T1 ment of the falling bundles["ofg ainfan'd connections between said 1 controlling "menibe! and the clutch for actuating jsai'd clutch to set the chain an'd"p l ungerhead 3111110? tion when the controlling member-"is struck bya falling bundle of-grain;

l7.'A structure asrecited in'e1airn 16 wherein meansareprovided acting through' v said connections for swinging *theeo'n'trol-f ling member'outot the path of (movementof the plunger head upon initial movement of said plunger head.

18. A device of tlie'character' described comprising side walls constituting 'afi'p'as sageiv'ay between them, a "bottom for said passageway having channeled edges f'consti tuting track "ways' saidf bottoiii' and track ways being tilted d wnwardly at theoppo site'ends thereof, a wheeledplmiger*headi the Wheels of which are" moun'tedlin said" trackways,jan endless chain "one fiiglift of which'is disposedto 'travelabove saidbot tom, a connection between the plunger "head" and said flightof' chain, driving connections for the chain including a "clutch'and means controlled-by 'the] falling bundles of grain,

vfor actuating said elutchl' a passageway leading thereto, a reciprocatory plunger in the passageway, a pair of placers, one upon each side of the passageway and movable obliquely with respect thereto, a pair of foldable levers, means controlled by the movement of said levers under the influence of the plunger for setting the placers in motion and for causing them to make one complete movement into and out of the shock forming arms, interconnecting means between the foldable levers and means for causing one of said levers to assume a folded position when the other is projected into the passageway and vice versa.

20. A structure as recited in claim 19 in which the last named means comprises a pair of springs for each fcldable lever, one of said springs connecting the two parts of the levers and the other of said springs connecting the outer part of the lever to a fixed point.

In testimony whereof I afiix mv signature.

MARION G. SLAWSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, Washington, D. G. 

